Open the Output settings in OBS Studio, Streamlabs Desktop or another creator application and you may be presented with several encoder choices: NVIDIA NVENC, an AMD hardware encoder, Intel Quick Sync or software encoding such as x264. The names make the decision sound more technical than it needs to be. For most modern gaming and creator PCs, a supported hardware encoder is usually the best place to start because it shifts much of the video-encoding work away from general CPU processing and onto specialised hardware.

That does not mean hardware encoding is automatically best on every machine. Your GPU generation, CPU headroom, codec, bitrate, resolution, frame rate, application workload and driver stability all matter. The best encoder for streaming and recording is ultimately the one that delivers the quality you need while leaving enough system resources for everything else you are doing.

Encoder vs codec: the distinction that makes everything easier

Before comparing NVENC and x264, it helps to separate two terms that are often mixed together. A codec defines how video is compressed and represented. H.264 or AVC, HEVC or H.265, and AV1 are codecs. An encoder is the implementation that performs that compression.

H.264, HEVC and AV1 are video compression formats or codecs.
NVIDIA NVENC is NVIDIA’s hardware video-encoding technology.
Intel Quick Sync Video uses supported Intel media hardware for encoding.
AMD hardware encoding uses dedicated or specialised media capabilities on supported AMD hardware.
x264 is a software implementation of H.264 encoding that primarily uses CPU resources.

So NVENC vs x264 is not exactly the same question as H.264 vs AV1. You can be choosing both an encoding implementation and a codec, depending on what your hardware and application support.

What hardware encoding actually does

Modern GPUs and some CPUs include specialised media hardware designed to encode video efficiently. NVIDIA offers NVENC, AMD provides its own hardware video-encoding implementations, and Intel offers Quick Sync Video on supported processors and graphics hardware. These systems are attractive to creators because they reduce how much general-purpose CPU time must be spent compressing every frame.

That matters when the same computer is already running a game, OBS or Streamlabs, browser sources, Discord, webcam processing and other applications. Keeping more CPU headroom available can make the overall system easier to manage, particularly when you are gaming and encoding at the same time.

General CPU utilisation is usually much lower than with CPU-heavy software encoding.
Games and creator applications retain more CPU capacity.
Hardware encoders are well suited to simultaneous gameplay and recording.
Modern generations can provide very good image quality.
They are particularly attractive for replay-buffer workloads that may remain active continuously.

Hardware encoding is not free, though. Encoding still consumes system resources. GPU load, video-encode utilisation, memory bandwidth, VRAM pressure, rendering load and driver behaviour can all affect the result. A GPU that is already completely saturated by a game may leave less room for the rest of the capture pipeline.

When software encoding still makes sense

Software encoding performs the compression primarily with general CPU resources. For creators, x264 is the most familiar example. It offers extensive preset and quality control and has historically been important when creators wanted strong compression efficiency from the hardware available at the time.

x264 is not obsolete. It can still be a sensible choice when hardware encoding is unavailable, incompatible with a particular workflow, behaving unreliably or when the machine has enough unused CPU capacity to handle the work comfortably. Some workflows may also favour software encoding because of specific quality, compatibility or processing requirements.

The downside appears when slower x264 presets compete with a demanding game and several creator applications for CPU time. A configuration that looks fine while recording the desktop can behave very differently once the game, browser, voice chat and streaming software are all active.

NVENC vs x264: which is better for creators?

The NVENC vs x264 comparison is one of the most common versions of the hardware vs software encoder question. Older comparisons often treated CPU encoding as the obvious quality choice and GPU encoding as the performance compromise. That simplified view is increasingly outdated. Modern NVENC generations have substantially narrowed the quality gap that once pushed many creators towards CPU encoding.

CPU usage: NVENC usually leaves considerably more CPU headroom, while x264 can become CPU-intensive as you move towards slower presets.
GPU and video-encoder usage: NVENC moves the encoding work to NVIDIA’s dedicated video hardware, although the wider capture and rendering pipeline can still use GPU resources.
Gaming performance: NVENC is often easier to run alongside a CPU-demanding game. x264 can also work well when the system has substantial spare CPU capacity.
Image quality: Both can produce strong results. The outcome depends on bitrate, preset, codec, resolution and hardware generation rather than the encoder name alone.
Bitrate efficiency: Differences depend heavily on configuration. Avoid assuming either implementation always wins at every bitrate.
Livestreaming: Hardware encoding is commonly attractive because streaming already competes with the game and other applications for resources.
Recording: Both can work extremely well, but local recording often allows higher bitrates or quality-based modes that reduce the importance of squeezing maximum quality into a strict streaming bitrate.
Simultaneous streaming and recording: Hardware encoding can be especially useful because it helps prevent the CPU from becoming the single bottleneck.
Replay capture: A hardware encoder is often a strong fit because the encoder may remain active continuously while waiting for a moment to be saved.

There is therefore no universal quality winner. A newer NVENC implementation at sensible settings can be an excellent option, while x264 can still be entirely appropriate on a machine with sufficient CPU headroom. Test the workload you actually use rather than relying on a comparison made with different hardware, bitrates or presets.

Hardware encoding vs software encoding at a glance

Main processing resource: Hardware encoding uses dedicated or specialised media hardware; software encoding primarily uses the CPU.
CPU load: Hardware encoding is usually lower; software encoding is usually higher.
Gaming suitability: Hardware encoding is usually an excellent starting point; software encoding depends strongly on available CPU headroom.
Streaming: Modern hardware encoders are highly practical; software encoding remains useful on appropriate systems.
Recording: Both can deliver excellent results when sufficient resources are available.
Replay capture: Hardware encoding is particularly attractive for an always-running capture workload; software encoding can consume CPU capacity needed elsewhere.
Quality: Modern hardware encoders can produce very good quality, while software encoding remains highly configurable.
Compatibility: Hardware encoding depends on supported hardware, drivers and application support; software encoding depends more heavily on CPU capability.

What is the best encoder for OBS?

OBS Studio exposes encoder choices according to the hardware and software available on your PC. If you have a relatively recent NVIDIA GPU, NVENC is often an appropriate first choice for both streaming and recording. Creators with supported AMD or Intel hardware should similarly investigate the corresponding hardware encoder before assuming x264 is necessary.

The right choice also changes with the job. For streaming, you are working within platform codec support, network upload capacity and practical bitrate limits. Quality at a restricted bitrate can matter more than file size. For recording, you can often use a substantially higher bitrate or a quality-oriented recording mode because the video is being written locally rather than sent through a constrained internet connection.

If your main goal is capturing clips rather than keeping full sessions, it is also worth comparing the wider workflow rather than only the encoder dropdown. OBS and Streamlabs take different approaches to recording and replay workflows, and those differences may matter more than a small theoretical encoder advantage.

What is the best encoder for Streamlabs?

Streamlabs Desktop presents many of the same fundamental choices because the underlying encoding problem is the same. A creator gaming and streaming from one PC will commonly favour a supported hardware encoder when it works reliably because this helps preserve CPU resources for the game and the rest of the streaming stack.

Encoder availability depends on the hardware and drivers installed on the system. Selecting a Streamlabs hardware encoder such as NVENC also does not guarantee perfect stability. Driver versions, software updates, GPU load and a particular machine’s configuration can occasionally create problems. If one encoder behaves badly, testing another is a legitimate troubleshooting step rather than a failure to use the theoretically superior option.

What is the best encoder for Cutscene Replay?

Cutscene Replay has a different workload from a conventional livestream encoder. Its purpose is to maintain a rolling replay capture so you can save an unexpected moment after it happens rather than recording and managing an entire session. If you want a deeper explanation of that workflow, see how recording the last 30 seconds of gameplay works with replay buffers.

Replay capture may be running alongside the game, OBS or Streamlabs, a livestream, browser sources, Discord, webcams and other creator applications. Encoding efficiency therefore matters because the capture process is part of an already busy system. Cutscene can use or prefer hardware encoding where appropriate, which can help keep more general CPU resources available while replay capture runs next to other creator workloads.

Software encoding remains useful as a compatibility or troubleshooting option. The theoretically optimal encoder is not the correct choice if it is unstable on a particular machine or software configuration. If changing the encoder resolves a genuine capture or encoding problem, reliability should take priority over a small benchmark advantage.

Cutscene’s encoder selection does not control the encoder used independently by OBS or Streamlabs. Each application manages its own capture and encoding pipeline, so a PC running both applications may be carrying more than one encoding workload at the same time.

Can you run multiple hardware encoders at once?

Modern hardware can often handle multiple encoding workloads, which is useful if you are livestreaming through OBS or Streamlabs while also maintaining a replay buffer. But this should not be interpreted as unlimited capacity. The practical limit varies with GPU generation, driver behaviour, resolution, frame rate, codec and the number and type of simultaneous encoding sessions.

Overall GPU utilisation
Dedicated video encode utilisation
Dropped or skipped frames
Rendering lag
Encoding lag
CPU utilisation
VRAM usage
System and GPU temperatures when relevant

A configuration that works at 1080p and 60 fps may not behave identically at a higher resolution or with several simultaneous outputs. Test the exact combination you intend to use.

Streaming, recording and replay capture need different priorities

For streaming

Streaming is constrained by the codecs supported by the destination platform, your upload connection and the bitrate you can reasonably send. Encoder performance while gaming is also important because the game, rendering pipeline and streaming application all need resources at the same time. At restricted bitrates, compression efficiency can become more noticeable.

For recording

Local recording gives you more freedom. You can often use higher bitrates or quality-based settings, but storage requirements, recording resolution, frame rate and compatibility with your editing software become more important. The most efficient codec is not very useful if your editing workflow struggles to decode it reliably.

For replay capture

Replay capture adds another concern: the encoder may remain active continuously so that recent footage is available when something worth saving occurs. That makes low ongoing overhead and the ability to coexist with gaming and streaming particularly valuable. Buffer behaviour and the speed of turning a captured moment into a saved clip also form part of the overall experience.

H.264, HEVC and AV1: choosing the codec as well as the encoder

H.264 / AVC: Extremely widely supported and generally the safest choice when compatibility is the priority.
HEVC / H.265: Can provide more efficient compression in supported workflows, but playback, editing and platform compatibility should be checked.
AV1: A newer and highly efficient codec that is increasingly useful for streaming and recording on supported hardware and platforms, but it should not be selected automatically without checking destination and editing support.

Keep the two decisions separate. Choosing AV1 instead of H.264 is a codec decision. Choosing NVENC instead of x264 is an encoder-implementation decision. Your application may expose combinations of both depending on the hardware installed.

A practical encoder decision framework

Start with a supported modern hardware encoder. This is usually the most practical baseline on a gaming or creator PC.
If you use a recent NVIDIA GPU, test NVENC.
If you use supported AMD hardware, test the available AMD hardware encoder.
If your Intel hardware provides supported media capabilities, consider Quick Sync.
Use x264 when hardware encoding is unavailable, when you have sufficient CPU headroom, when a workflow specifically benefits from it or when hardware encoding causes compatibility or stability problems.
Test the real workload. Play the game you normally play, run OBS or Streamlabs, keep Discord and browser sources open, enable replay capture if you use it, and then inspect performance rather than testing the encoder in isolation.

That last step is the most important. A theoretically efficient encoder can still be the wrong choice for your particular combination of hardware, drivers and applications.

What to do when the recommended encoder performs badly

If hardware encoding is normally recommended for your system but you see lag, failed recordings, skipped frames or unstable capture, do not assume the encoder itself is universally bad. Look at the entire pipeline.

Update or test a different graphics driver if the current one appears problematic.
Check whether the GPU is already saturated by the game.
Review resolution, frame rate and application output settings.
Confirm that the selected codec and encoder combination is supported.
Reduce the number of simultaneous demanding encoding jobs as a test.
Watch for excessive VRAM or system resource pressure.
Consider whether the problem appeared after a software or driver update.
Temporarily switch from hardware to software encoding, or from software to hardware encoding, to see whether the behaviour changes.

Treat the alternative encoder as a diagnostic tool. If switching immediately resolves the problem, you have useful evidence about where the conflict may be occurring even if you later return to the original configuration.

Try replay capture alongside
your creator workflow

If you want to save unexpected moments without keeping entire recording sessions, Cutscene Replay can add rolling replay capture and quick clip handling to your existing setup.

Start your free trial

So, what is the best encoder for streaming and recording?

For most creators using a reasonably modern gaming PC, a supported hardware encoder should usually be the first option tested for streaming and recording. Technologies such as NVENC, AMD hardware encoding and Intel Quick Sync can provide very good video quality while avoiding the need to place the entire encoding workload on the CPU.

x264 remains a useful and legitimate choice. It should not be dismissed as outdated or inherently inferior. CPU capacity, bitrate, codec, compatibility requirements and real-world stability can all make software encoding appropriate.

The decision becomes even more important when several workloads run at once. If your normal setup is gaming plus OBS or Streamlabs plus Cutscene Replay, choose the encoder configuration that produces reliable video while preserving enough CPU, GPU and memory resources for the complete workflow. That practical result matters more than winning a hardware-versus-software comparison on paper.